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Simplifying 7x + -30 = 7x + -28 Reorder the terms: -30 + 7x = 7x + -28 Reorder the terms: -30 + 7x = -28 + 7x Add '-7x' to each side of the equation. -30 + 7x + -7x = -28 + 7x + -7x Combine like terms: 7x + -7x = 0 -30 + 0 = -28 + 7x + -7x -30 = -28 + 7x + -7x Combine like terms: 7x + -7x = 0 -30 = -28 + 0 -30 = -28 Solving -30 = -28 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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